What functionality should a Marketing Cloud user utilize to retrieve email addresses of unsubscribed users without SQL knowledge?

Using My Tracking is the correct approach because it provides a user-friendly interface where Marketing Cloud users can easily access data related to their email campaigns, including information on unsubscribed users. This functionality is designed for marketers who may not have technical skills, such as knowledge of SQL, allowing them to view and extract necessary information directly through the Marketing Cloud platform.

In My Tracking, users can filter and sort their email engagement data without needing to write complex queries. This accessibility makes it an ideal choice for those focusing on marketing efforts while ensuring they stay compliant with privacy and opt-out regulations by easily identifying unsubscribed email addresses.

Other options like My Reports, Tracking Extract, and Data Views might offer various analytical or data extraction functionalities, but they typically require more technical knowledge or familiarity with the specific structures and queries within Marketing Cloud, which may not be suitable for all users.